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Binding and Unbinding to Active Directory from Mac OS via Command Line

• Open the Terminal Application
• Type in sudo -i and type in your Mac Administrator account password. sudo gives you root level or administrator level privileges.

To View current Active Directory Settings

dsconfigad -show

To Unbind a Computer from an Active Directory Domain

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# http://www.bogotobogo.com/python/python_subprocess_module.php

#!/usr/bin/python
import subprocess

# Example 1
out = subprocess.Popen(['df', '-h'],
                       stdout=subprocess.PIPE,
                       stderr=subprocess.PIPE)
(stdout, stderr) = out.communicate()

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# /root/xfsprogs-3.1.9ubuntu2/include/xqm.h                       
# (('X'<<8)+(1)) | (('X'<<8)+(3))                       
# use strace to get above numbers: strace xfs_quota

#!/usr/bin/env python
# get quota information from XFS
import sys
from pwd import getpwnam
from ctypes import *
libc = cdll.LoadLibrary('libc.so.6')

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#!/bin/bash

# ARGV as array
input=("$@")

# filename is first argument
filename="${input[0]}"

# get array size
height=${#input[@]}

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shell -${SHELL}
caption always "%w"
startup_message off
defscrollback 10000

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Renew Puppet CA cert.

Not the perfect idea, but should alleviate the need to resign every cert.

What you need from existing puppet ssl directory:
ca/ca_crt.pem
ca/ca_key.pem

Create an openssl.cnf:
[ca]

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Using Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278

Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/

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1) see re: increasing shmmax http://stackoverflow.com/a/10629164/1283020

2) add to postgresql.conf:
shared_preload_libraries = 'pg_stat_statements'   # (change requires restart)
136 pg_stat_statements.max = 1000
137 pg_stat_statements.track = all

3) restart postgres

4) check it out in psql

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Howto start using Letsencrypt with simp_le

What I had:

• A Debian server at "mydomain.fi"
• A self-signed certificate for Apache HTTPD, Postfix SMTPD and Dovecot IMAPD.

What I wanted:

• A Letsencrypt certificate for Apache, Postfix and Dovecot
• Simple tool for managing certificates that does need root privileges
• Automatic renewal

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#!/usr/bin/env python

"""
Python functions for finding open files and PIDs that have opened a file.
"""

import numbers
import subprocess

try: